Matrix making and drying machine.



A. WALDT.

MATRIX MAKING AND DRYING MACHINE.

- APPLICATION FILED FBB.4,1909. 927,61 5.

Patented July 13, 1909.

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ANDREW \VALDT, OF ST. LOUIS, MISSOURI.

MATRIX MAKING AND DRYING MACHINE.

Specification of Letters Patent.

Patented July 13, 1909.

Application filed February 4, 1909. Serial No. 476,170.

To all whom it may concern:

Be it known that 1', Axnnnw lVALn'r, a citizen of the United States, and resident of tit. Louis, Missouri, have invented certain new and useful Improvements in Matrix Ma king and Drying Machines, of which the following is a specification containing a full, clear, and exact description, re't'erenee being had to the accompanying drawings, forming a part hereoil.

My invention relates to a matrix making and drying machine, my object being to construct a simple inexpensive and compact machine, particularly intended for use in printing otlices, making use of the stereotyping process, and by the use of which machine a paper matrix may be very easily and quickly formed and dried.

To the above purposes, my invention consists in certain novel features of construction and arrangement of parts hereinafter described, claimed and shown in the accompanying drawings, in which:

Figure 1 is a vertical section taken through the center of a machine of my improved construction; and Fig. 2 is an end elevation of the machine.

Referring by characters to the accompanying drawings: 1 designates a suitable base, preferably formed in one piece, and fixed thereon are four posts or standards 2, to the upper ends of which is rigidly fixed a horizontally disposed hollow metal block 3, to the ends of which are connected steam inlet and outlet pipes 4t and L Fixed to the center of the base 1, beneath the center of the hollow block 3, is a vertically disposed cylinder 5 in which is arranged for reciprocation a piston (5, the upper end of which carries a horizontally disposed plate 7 Fixed on one end of the base 1 is a vertically disposed cylinder 8 in which is arranged for operation a plunger 9, the upper end of which is pivotally connected to a handle 10, the forward end of which is fulcrumed to a link 11 connected to the cylinder 8. Connected to the lower end of the cylinder 8 is a pipe 12, which leads from a suitable source of water supply, and located in said pipe 12 is a check valve 13 which permits the passage of water through said pipe to the cylinder 8. Connecting the lower ends of the cylinders 5 and S is a pipe let, in which is located a check valve 15 which permits the passage of water from the cylinder 8 to the cylinder 5. Leading from the lower end of the cylinder 5 is a discharge pipe 1(3 provided with an ordinary globe valve 17.

in the use o't my improved matrix making and drying machine, the term A, from which a matrix is to be made is placed upon the central portion of the plate 7 and the moist matrix paper l) is placed directly on top of said form with a blanket or fabric cover (7 positioned on top ol said matrix paper.

The operator manually engages the handie and by imparting a pumping movement thereto reciprocates the plunger 9 vertically within the cylinder 8. \Vith each upstroke oi said plunger the water will be drawn into the lower portion of the cylinder through the pipe 12 past the check valve 13. And with each downstroke of said plunger the water within the lower portion of the cylinder 8 will be -forced through the pipe l-l past the check valve in the lower end of the cylinder 5. As water is thus pumped into the lower end of the cylinder 5, the piston (3 and parts carried thereby will be elevated until the blanket C is brought into contact with the under side of the block 3, and a continued pumping up operation causes the form A to press against the matrix paper, thus forming the matrix with direct pressure. As soon as the matrix has been thus formed, steam is allowed to discharge into the hollow block 3 through the pipe at, thus rapidly heating said hollow block and consequently heating the blanket C and matrix paper and consequently drying said matrix paper. The steam admitted to the hollow block 3 escapes through the pipe As soon as the matrix has been properly dried, the valve 17 in the pipe 16 is opened to permit the discharge of water from the lower end of the cylinder 5, and as this action takes place the piston 6 and parts carried thereby, will descend by gravity and the dry matrix is now removed from the form.

It will be noted that in my improved machine, the matrix is formed by direct pressure and for this reason a very sharp or cleancut matrix can readily be obtained for the reason that there is no drag or transverse pull upon the matrix paper and the blanket, which objectionable actions occur where the matrix paper is pressed on to the form by means of a heavy roller.

By utilizing direct pressure, a comparatively dry matrix paper can be made use of, and consequently said matrix paper will dry much more quickly than where a very moist paper is used. By pressing the matrix paper and blanket directly against the hollow block, which is heated by steam or the like, the heat is applied directly to the blanket and the matrix paper during the drying operation, and for this reason said drying operation, which under the present practice requires considerable time, can be accomplished in a comparatively short period of time.

A machine of my improved construction is very simple, inexpensive, occupies a small area of floor space and provides means whereby stereotyped matrices can be very rapidly formed and dried.

I claim:

1. A machine of the class described, comprising a frame, a head block rigidly sccured to said frame, said block being provided with a steam chamber and said steam chamber being provided with an inlet and outlet, a vertically movable plate positioned beneath said head block, which movable plate is adapted to receive the form, matrix paper and blanket, means for forcing said movable plate upwardly and beneath the lower face of the lower wall of the steam chamber formed in said head block, whereby the blanketcarried by said movable plate is brought in intimate contact with the under face of the lower wall of the steam chamber for applying heat generated in said chamber to the matrix paper without first passing through the form.

2. A machine of the class described, comprising a base, vertical standards mounted on said base, a fluid pressure chamber mounted on said base, a head block rigidly secured to the upright standards, said head block being provided with a steam chamber and a steam inlet and outlet, a movable plate positioned beneath said head block and adapted to receive the form, matrix paper and blanket, said movable plate being provided with a piston operating in the fluid chamber carried by the base, suitable connections for supplying the fluid pressure to said chamber for forcing said movable plate upwardly and beneath the lower wall of the head block, whereby the form, matrix paper and blanket carried by said movable plate are brought in intimate contact with the lower wall of the head block, whereby an impression is made on the matrix paper and heat is applied to the same without first passing through the form.

In testimony whereof, I have signed my name to this specification, in presence of two subscribing witnesses.

ANDRElV lVALDT. lVitnesses M. P. SMITH, E. L. lVALLAou. 

